Atal honek suhesi arau sinple batzuk konfiguratzeko aukera ematen du: helburuko sistemak interneten bidez zein motatako mezuak onartuko diren zehaztuko du. Berriz, honek, sistemaren zerbitzu egokiak Internetetik sartzeko errazak izan daitezela baimentzen du. In the default setting, no button is checked - no service of the system is accessibly from the network. The "Everything (no firewall)" button has a particular role: it enables access to all services of the machine - an option that does not make much sense in the context of the installer since it would create a totally unprotected system. Its veritable use is in the context of the Mageia Control Center (which uses the same GUI layout) for temporarily disabling the entire set of firewall rules for testing and debugging purposes. Gainontzeko checkbutton guztiak gutxi gorabehera azaleratzen dira. Adibidez, "CUPS zerbitzaria" botoia egiaztatuko duzu zure makinako inprimagailuak sarean eskuragarri nahi badituzu. Aurreratua The set of checkbuttons only comprises the most common services. The "Advanced" button allows to enable messages that correspond to a service for which no checkbutton exists. The "Advanced" button opens a window where you can enable a series of services by typing a list of couples (blank separated) <port-number>/<protocol> - <port-number> is the value of the port assigned to the service you want to enable (e.g. 873 for the RSYNC service) as defined in RFC-433; - <protocol> is one of TCP or UDP - the internet protocol that is used by the service. Adibidez, RSYNC zerbitzurako sarbidea gaitzeko sarrera 873/tcp da. Bi protokoloak erabiltzeko zerbitzu bat martxan jartzen denean, 2 bikote zehazten dira portu bererako.